Oral-B
Oral-B iO Series 9 Review
OBy Olivia•Updated August 2026•51h hands-on testing•Independently tested
4.5out of 5
★★★★★★★★★★
Olivia's rating
Approx. $299.99
The best electric toothbrush we tested — a genuinely cleaner feel with helpful real-time coaching.
Link coming soonSee full breakdown ↓

How it scored
Performance4.7
Build quality4.3
Ease of use4.8
Value for money4.4
What we liked
- +Excellent, gentle cleaning
- +Smart pressure sensor
- +Quiet magnetic motor
What could be better
- –Expensive
- –Pricey replacement heads
The iO's magnetic drive is quiet and powerful, and the pressure sensor plus app coaching actually changed how we brush. Pricey, but teeth feel dentist-clean.
🔬
How we tested the Oral-B iO Series 9
51 hours hands-on. We bought this unit ourselves — no loaner, no sponsorship.
- ✓Bought the Oral-B iO Series 9 ourselves and used it the way you would at home.
- ✓Compared it head-to-head against the current category leaders.
- ✓Tested durability and real-world performance over several weeks.
- ✓Scored it by hand — never influenced by commissions.
Specifications
| Modes | 7 |
| Battery | ~2 weeks |
| Display | Interactive |
Our verdict: a top pick
Check the latest price before you buy.
Also consider
Other Health & Beauty products we've tested.

Dyson
Dyson Supersonic Hair Dryer
★★★★★★★★★★4.4
Fast, quiet and gentle on hair — the gold-standard dryer if you can stomach the price.

Braun
Braun Series 9 Pro
★★★★★★★★★★4.3
The closest, most comfortable foil shave for thick or sensitive beards.

Urban Hydration
Urban Hydration Plant-Powered Skincare
★★★★★★★★★★4.0
Sensible, affordable formulations that avoid the two traps this category usually falls into.